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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-08-15 00:02:36 +0200 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2014-10-15 20:05:17 +0900 |
| commit | 24c3d5fa114fe5f44e8e4339b5ba8cf683f7645f (patch) | |
| tree | c8e37ffaeec7f76efd2044018066d26af8dc6f40 | |
| parent | f6d675ea9af22b13a1b7c9d83de7b81865ff8810 (diff) | |
| download | linux-3.10-24c3d5fa114fe5f44e8e4339b5ba8cf683f7645f.tar.gz linux-3.10-24c3d5fa114fe5f44e8e4339b5ba8cf683f7645f.tar.bz2 linux-3.10-24c3d5fa114fe5f44e8e4339b5ba8cf683f7645f.zip | |
drm/gem: WARN about unbalanced handle refcounts
Trying to drop a reference we don't have is a pretty serious bug.
Trying to paper over it is an even worse offense.
So scream into dmesg with a big WARN in case that ever happens.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 21a6cbce8e0..1c87f7e0664 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -301,7 +301,7 @@ static void drm_gem_object_handle_free(struct drm_gem_object *obj) void drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) { - if (atomic_read(&obj->handle_count) == 0) + if (WARN_ON(atomic_read(&obj->handle_count) == 0)) return; /* |